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  • Best practices for parsing HTML from Wikipedia for iPhone viewing?

    - by ivanTheTerrible
    I am building an iPhone Wikipeida game app, that requires modifying the default Wiki HTML a little bit (mostly simplifying the page). So far I am directly downloading the HTML output from en.wikipedia.org/wiki/Article_Foo to a python Google App Engine, and then modify its CSS and HTML structure, cache it, and finally output to iPhone. It works but I find this method quite tedious, there must be a better method? Please note that I use App Engine not just for parsing the Wiki, but the game also requires it to keep the stores...etc, hence not a overkill. Also, I would prefer doing all the work with python on App Engine, to keep the iPhone client as thin and mobile as possible (XML on iPhone is a big no fun) Thanks a lot.

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  • How to make same UIWebView take data from different local .html files?

    - by Mike Rychev
    I have an app, where there's one UIWebView and a UITableView. I don't want to create many .xib's, so I decided to make one .xib for all elements of the table. When user chooses a table element, the UIWebView appears and I want it to load data from different .html's depending on the name of the parent controller. I tried this: if (selectedTableElement==@"FirstElement") { [childController.message loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"_" ofType:@"html"]isDirectory:NO]]]; } And then myWebView=message; But it didn't work. Thanks in advance!

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  • Which trick uses Apple to show icons in the dock contextual menu ?

    - by Matthieu Riegler
    My question is quite simple : To use a custom menu for the apps icon on the dock, - (NSMenu*) applicationDockMenu: (id) sender; of the NSApplicationDelegate has to return the menu that the dock will display. Using setImage on a NSMenuItem, you can normaly add icons to the menu. They show up on the normal menu, but not on in contextual menu of the app's dock icon. Then how did Apple manage QuickTime, XCode, Preview to show icons in the list of recent opened files accessible in their dock contextual menu ? Thx.

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  • Convert NSString to string

    - by coure06
    NSDate *now = [NSDate date]; NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; [formatter setDateFormat:@"yyyy"]; NSString *stringFromDate = [formatter stringFromDate:now]; CGContextShowTextAtPoint(context, 50, 50, stringFromDate, 5); I am not getting the exact date? also getting warning while compiling warning: passing argument 4 of 'CGContextShowTextAtPoint' from incompatible pointer type

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  • UIImage in UIView and display image parts out of bounds

    - by Mpampinos Holmens
    I have an image in a subview that is bigger than the subview it self, is it possible to display parts of the image that are out of the subview! have tried the view.clipsToBounds=NO; but no lack still. here is part of my code so far. xRayView = [[XRayView alloc] initWithFrame: CGRectMake((1024 - 800) / 2, self.device.frame.origin.y - 26, 800,530)]; xRayView.clipsToBounds=NO; [xRayView setForgroundImage: [UIImage imageWithContentsOfFile: [[NSBundle mainBundle] pathForResource: @"xray_foreground_01" ofType: @"png"]]]; [xRayView setBackgroundImage: [UIImage imageWithContentsOfFile: [[NSBundle mainBundle] pathForResource: @"xray_background_01" ofType: @"png"]]]; the foreground and the background images are bigger than the xray view

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  • How to notify ViewController on parse end with multiple ViewControllers using a single parser.

    - by objneodude
    Hello, I have created a RSS parser and 3 TableViews and it parses the RSS files fine but I don't know how to notify the TableViewController when parsing has ended so it can update the view. The TableViewController initiates the parser and the parsing of a feed. parser = [[RSSParser alloc] initWithURL:@"http://randomfeed.com"]; I can access the single feed items like [parser feedItems]; In parser.m i have implemented the delegate methods of NSXMLParser: - (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict - (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string - (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName - (void)parserDidEndDocument:(NSXMLParser *)parser So how do i get parserDidEndDocument to notify my controllers so i can add the data to the tableview. Cheers from a obj-c beginner.

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  • How do I call a variable from another class?

    - by squeezemylime
    I have a class called 'Constants' that I am storing a String variable in. This class contains a few global variables used in my app. I want to be able to reference this class and call the variable (called profileId) in other Views of my app. I looked around and found a few examples, but am not sure how to do this. Currently my setup is: Constants.h @interface Constants : UIViewController { NSString *profileId; } @property (nonatomic, retain) NSString *profileId; @end Constants.m #import "Constants.h" @implementation Constants @synthesize profileId; - (void)dealloc { [profileId release]; [super dealloc]; } And I am trying to call the variable profileId in a new View via this way: NewView.h file @class Constants; NewView.m file NSLog(@"ProfileId is:", [myConstants profileId]); Is there something I'm missing? It is coming up null, even though I am properly storing a value in it in another function via this way: Constants *Constant; Constant = [[Constants alloc] init]; Constant.profileId = userId;

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  • NSPredicate 'OR' filtering based on an NSArray of keys

    - by So Over It
    Consider the following NSArray: NSArray *dataSet = [[NSArray alloc] initWithObjects: [NSDictionary dictionaryWithObjectsAndKeys:@"abc", @"key1", @"def", @"key2", @"hij", @"key3", nil], [NSDictionary dictionaryWithObjectsAndKeys:@"klm", @"key1", @"nop", @"key2", nil], [NSDictionary dictionaryWithObjectsAndKeys:@"qrs", @"key2", @"tuv", @"key3", nil], [NSDictionary dictionaryWithObjectsAndKeys:@"wxy", @"key3", nil], nil]; I am able to filter this array to find dictionary objects that contain the key key1 // Filter our dataSet to only contain dictionary objects with a key of 'key1' NSString *key = @"key1"; NSPredicate *key1Predicate = [NSPredicate predicateWithFormat:@"%@ IN self.@allKeys", key]; NSArray *filteretSet1 = [dataSet filteredArrayUsingPredicate:key1Predicate]; NSLog(@"filteretSet1: %@",filteretSet1); Which appropriately returns: filteretSet1: ( { key1 = abc; key2 = def; key3 = hij; }, { key1 = klm; key2 = nop; } ) Now, I am wanting to filter the dataSet for dictionary objects containing ANY of the keys in an NSArray. For example, using the array: NSArray *keySet = [NSArray arrayWithObjects:@"key1", @"key3", nil]; I want to create a predicate that returns and array of any dictionary objects that contain either 'key1' or 'key3' (ie. in this example all dictionary objects would be returned except for the third object - as it does not contain either 'key1' or 'key3'). Any ideas on how I would achieve this? Would I have to use a compound predicate?

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  • How do I run modals windows from code with cocoa?

    - by Leandro
    Hi,everybody I`m trying to run a window as modal directly from the code. My program starts and a main NSWindows is showed.A thread still running to see if the user has a valid distribution. if he doesn't I need to run a modal.I mean, I have no buttons clicked in the interface.I've designed a NSWindow on the interface builder for a password set, and I want to call it only when my validation is not successful. I have tested and realized that these methods which are responsible for modal windows running only work in a IBAction environment. //This doesn't work -(void) showPasswordWindow { [NSApp runModalForWindow:[self window]]; } //this works But its not useful for me =( - (IBAction) passwordWindowButton:(id)sender { [NSApp runModalForWindow:[self window]]; } Please, help this newbie =)

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  • MKMapView maptype not changing!

    - by TheLearner
    I cannot understand why my MKMapView does not want to change to satellite view. This method is called and case 1 is called I have stepped over it but it simply does not change to satellite type it always changes to standard. It only works when it goes back to Map type. Anyone have any ideas? - (IBAction)mapSatelliteSegmentControlTapped:(UISegmentedControl *)sender { switch (sender.selectedSegmentIndex) { case 1: //Satellite self.mapView.mapType = MKMapTypeSatellite; default: //Map self.mapView.mapType = MKMapTypeStandard; } }

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  • iPhone/iPad - issues with NavigationBar button ?

    - by user532445
    I my application i have added button in NavigationBar like this.. UIBarButtonItem *more=[[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"search-25by25.png"] style:UIBarButtonItemStylePlain target:self action:@selector(SelectMission:)]; self.navigationItem.rightBarButtonItem = more; When i am clicking on button application get's shutdown... If i am doing same thing with normal button it's working fine can any one help me why it's behaving like this?

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  • UIScrollview disable transparency

    - by Frank
    It seems that UIScrollview has a transparency set by default. I have a background image set as a subview in self.view. but the image is showing on my scrollview that's also on the subview layer. I want it to cover up the background image so the scrollview transparency is disable.

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  • Setting an image for a UIButton in code.

    - by Spanky
    Hi, How do you set the image for a UIButton in code? I have this: UIButton *btnTwo = [UIButton buttonWithType:UIButtonTypeRoundedRect]; btnTwo.frame = CGRectMake(40, 140, 240, 30); [btnTwo setTitle:@"vc2:v1" forState:UIControlStateNormal]; [btnTwo addTarget:self action:@selector(goToOne) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:btnTwo]; but don't see what will set the image for it. Any help appreciated, Thanks // :)

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  • Forcing entry of certain character types in UITextField

    - by cannyboy
    If I have a UITextField which the user is inputing a registration number, which has the format: 11-11-1111 (that is 2 digits, a dash, 2 digits, a dash, four digits) How do I force the user to enter this kind of data only... so they can't enter anything except 0-9 in the first character, and only '-' for the third character etc.

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  • How to format date from string?

    - by 4thSpace
    I have a string with this value: 2010-05-13 23:17:29 I'd like to format it and am using the following code: NSDateFormatter *formatter = [[NSDateFormatter alloc] init]; formatter.dateStyle = NSDateFormatterMediumStyle; NSDate *formattedDate = [formatter dateFromString:dateString]; [formatter release]; When the debugger reaches the release line, formattedDate shows "invalid CFStringRef" and Cannot access memory at address 0x0 Any ideas what I'm doing wrong?

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  • game currency convert: math efficient

    - by Comradsky
    For variables:4 text views named diamondText, goldText, silverText, and bronzeText;money variable unsigned int money;and an NSTimer, every .1 sec,runs function: -(void)updateMoney{ money++; bronzeText.text = [NSString stringWithFormat:@"%d",money]; silverText.text = [NSString stringWithFormat:@"%d",money%10]; goldText.text = [NSString stringWithFormat:@"%d",money%100]; diamondText.text= [NSString stringWithFormat:@"%d",money%1000]; } Given that my currency is diamond = 10 gold = 10 silver = 10 bronze = 1; What would be most efficient way to calculate and display the money labels? How would you store this variable, with GameCenter and NSDictionary or GameCenter and something else? More details are below if you don't understand. To clarify: bronze has the last 2 numbers, silver has the next 2 numbers, and so on. I understand I could use 4 ints or an array, but i would rather try to use this method, unless theres a much more efficient way. Example: When money = 1000;bronzeText = nothing, silverText = 10,goldText = nothing, diamondText = nothing; What other ways would you do this that you think would be more efficient? I will be calling a function (void)collisionDetector that detects if my player.frame crosses with a flyingObject.frame, and if that object is a coin it gives an added value to money and then calls (void)updateMoney. Im just using the timer to test this and spawn these flying objects.

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  • Draggable cards (touch enumeration) issue

    - by glitch
    I'm trying to let a player tap, drag and release a card from a fanned stack on the screen to a 4x4 field on the board. My cards are instantiated from a custom class that inherits from the UIImageView class. I started with the Touches sample app, and I modified the event handlers for touches to iterate over my player's card hand instead of the 3 squares the sample app allows you to move on screen. Everything works, until that is, I move the card I'm dragging near another card. I'm really drawing a blank here for the logic to get the cards to behave properly. Here's my code: - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { NSUInteger numTaps = [[touches anyObject] tapCount]; if(numTaps = 1) { for (UITouch *touch in touches) { [self dispatchFirstTouchAtPoint:[touch locationInView: self.boardCardView] forEvent:nil]; } } } -(void) dispatchFirstTouchAtPoint:(CGPoint)touchPoint forEvent:(UIEvent *)event { for (int i = 0; i<5; i++) { UIImageView *touchedCard = boardBuffer[i]; if (CGRectContainsPoint([touchedCard frame], touchPoint)) { [self animateFirstTouchAtPoint:touchPoint forView:touchedCard]; } } } - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { NSUInteger touchCount = 0; for (UITouch *touch in touches){ [self dispatchTouchEvent:[touch view] toPosition:[touch locationInView:self.boardCardView]]; touchCount++; } } My questions are: How do I get the touch logic to disallow other cards from being picked up by a dragging finger? Is there anyway I can only enumerate the objects that are directly below a player's finger and explicitly disable other objects from responding? Thanks!

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  • Using Yahoo local search query for iPhone

    - by robbmcmahan
    I'm using yahoo local search in an iPhone app and trying to query everything in a certain location. According to the api docs you can pass "*" to query and it will return everything. I've tried passing it several different ways, including the way below but it does not work unless I actually pass it a real query. Does anyone know how or what I need to pass to make it query everything? [self setQuery:[@"*" stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]]; Thanks

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  • How to force a textField to become editable?

    - by Tzur Gazit
    I have a custom tableViewCell with a UITextLabel inside it. When the cell is first displayed, the place holder is shown and then disappears when the user types something in. What I want is to go back to the parent view, and then to the sub view again, and that the field will show the text that the user previously typed. If I set the text field, simply with setText, the textField is not editable. Any idea?

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  • how to dynamically recolor a CGGradientRef

    - by saintmac
    I have three CGGradientRef's that I need to be able to dynamically recolor. When I Initialise the CGGradientRef's the first time I get the expected result, but every time I attempt to change the colors nothing happens. Why? gradient is an instance variable ins a subclass of CALayer: @interface GradientLayer : CALayer { CGGradientRef gradient; //other stuff } @end Code: if (gradient != NULL) { CGGradientRelease(gradient); gradient = NULL; } RGBA color[360]; //set up array CGColorSpaceRef rgb = CGColorSpaceCreateDeviceRGB(); gradient = CGGradientCreateWithColorComponents ( rgb, color, NULL, sizeof (color) / sizeof (color[0]) ); CGColorSpaceRelease(rgb); [self setNeedsDisplay];

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  • How to do something when AVQueuePlayer finishes the last playeritem

    - by user1634529
    I've got an AVQueuePlayer which I'm creating from an array of 4 AVPlayerItems, and it all plays fine. I want to do something when the last item in the queue finishes playing, I've looked a load of answers on here and this is the one that looks most promising for what I want: The best way to execute code AFTER a sound has finished playing In my button handler i have this code: static const NSString *ItemStatusContext; [thePlayerItemA addObserver:self forKeyPath:@"status" options:0 context:&ItemStatusContext]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playerItemDidReachEnd) name:AVPlayerItemDidPlayToEndTimeNotification object:thePlayerItemA]; theQueuePlayer = [AVQueuePlayer playerWithPlayerItem:thePlayerItemA]; [theQueuePlayer play]; and then I have a function to handle playerItemDidReachEnd: - (void)playerItemDidReachEnd:(NSNotification *)notification { // Do stuff here NSLog(@"IT REACHED THE END"); } But when I run this I get an Internal Inconsistency Exception: An -observeValueForKeyPath:ofObject:change:context: message was received but not handled. Key path: status Observed object: <AVPlayerItem: 0x735a130, asset = <AVURLAsset: 0x73559c0, URL = file://localhost/Users/mike/Library/Application%20Support/iPhone%20Simulator/5.0/Applications/A0DBEC13-2DA6-4887-B29D-B43A78E173B8/Phonics%2001.app/yes.mp3>> Change: { kind = 1; } What am I doing wrong?

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  • issue with keychain and updates from app store

    - by xonegirlz
    I am having a very frustrating error. I have tested for an app upgrade by first installing the previous version (1.0.1) and then running version (1.0.2). Everything worked fine. I submitted the app and then I am getting issues people are getting crashes when they upgrade. I tried doing the same thing, which is installing the 1.0.1 and then install the binary on the app store, then it crashed. I looked at the console and crash logs and I get this: Jul 7 08:07:45 unknown MyApp[1429] <Warning>: KeychainUtils keychainValueForKey: - Error finding keychain value for key. Status code = -25300 Jul 7 08:07:45 unknown MyApp[1429] <Warning>: AccountSession readUserDataFromDisk - Error finding keychain value for key /var/mobile/Applications/997B32E7-6FFC-4696-9CAA-129BADE2FE64/Documents/instagram_json Jul 7 08:07:45 unknown MyApp[1429] <Warning>: UISegmentedControlStyleBezeled is deprecated. Please use a different style. Jul 7 08:07:45 unknown MyApp[1429] <Error>: *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary setObject:forKey:]: attempt to insert nil value (key: username)' *** First throw call stack: (0x33ee688f 0x367e7259 0x33ee6789 0x33ee67ab 0x33e5368b 0x14fd99 0x152319 0x1530bb 0x170299 0x3270ec59 0x32711817 0x354e7dfb 0x354e7cd0) Jul 7 08:07:45 unknown UIKitApplication:com.firesnakelabs.pinstagram[0x14e4][1429] <Notice>: terminate called throwing an exception >

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